North American Butterflies and Moths List

The definitive website on wildbirds & nature

Butterflies of North America

Butterflies of Kansas

Western White (Pontia occidentalis)

Western White (Pontia occidentalis [Reakirt])

Wing span: 1 1/2 - 2 1/8 inches (3.8 - 5.3 cm).

Identification: Upperside of forewing has marginal markings that
are lighter than the submarginal stripe. Below, forewing tip and
hindwing have veins outlined with gray-green. Short-day spring
and fall forms have more prominent markings.